CA190726A - Dispositif a ouvrir les portes - Google Patents

Dispositif a ouvrir les portes

Info

Publication number
CA190726A
CA190726A CA000190726A CA190726DA CA190726A CA 190726 A CA190726 A CA 190726A CA 000190726 A CA000190726 A CA 000190726A CA 190726D A CA190726D A CA 190726DA CA 190726 A CA190726 A CA 190726A
Authority
CA
Canada
Prior art keywords
door opener
opener
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000190726A
Other languages
English (en)
Inventor
Duncan W. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA190726A publication Critical patent/CA190726A/fr
Expired legal-status Critical Current

Links

CA000190726A 1918-10-29 1918-10-29 Dispositif a ouvrir les portes Expired CA190726A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA190726T 1918-10-29

Publications (1)

Publication Number Publication Date
CA190726A true CA190726A (fr) 1919-06-03

Family

ID=45310377

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000190726A Expired CA190726A (fr) 1918-10-29 1918-10-29 Dispositif a ouvrir les portes

Country Status (1)

Country Link
CA (1) CA190726A (fr)

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